/Engine/Source/Runtime/SignalProcessing/Public/DSP/LateReflectionsFast.h
Create reverberation in OutSamples based upon InSamples. OutSamples is a 2 channel audio buffer no matter the value of InNumChannels. OutSamples is mixed with InSamples based upon gain.
void ProcessAudio ( const [FAlignedFloatBuffer](API\Runtime\SignalProcessing\DSP\FAlignedFloatBuffer) & InSamples, const int32 InNumChannels, [FAlignedFloatBuffer](API\Runtime\SignalProcessing\DSP\FAlignedFloatBuffer) & OutLeftSamples, [FAlignedFloatBuffer](API\Runtime\SignalProcessing\DSP\FAlignedFloatBuffer) & OutRightSamples )